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Application filed by Echarri P, Cortez H, Rymer SfiledCriticalEcharri P
Priority to AR26488776ApriorityCriticalpatent/AR208821A1/en
Application grantedgrantedCritical
Publication of AR208821A1publicationCriticalpatent/AR208821A1/en
NEW 4 '- (B-SULFATO-ETIL-SULFONIL) -FENILAZO-6 HIDROXI-1,4-DIMETIL-3-SULFO 2-PIRIDONA AND ITS SALTS, USEFUL AS COLORANTS, PROCEDURE FOR THEIR OBTAINING, AND THE FIBROUS MATERIALS TAKEN WITH THEY